武功山篦子三尖杉群落特征及其保护

Characteristics and Protection of Cephalotaxus oliveri Community in Wugong Mountain

[目的]了解武功山篦子三尖杉种群的生长状况。[方法]对武功山篦子三尖杉群落进行调查,根据调查数据对群落植物区系、生活型、种-多度格局、垂直结构和篦子三尖杉种群年龄结构进行了分析。[结果]武功山篦子三尖杉群落区系成分以温带成分为主,向区系平衡点过渡;生活型以高位芽为主,占比为60%;种-多度格局为对数函数关系,得到拟合曲线y=24.07ln(x)+0.74(R^(2)=0.9775);群落分为乔、灌、草3层,树高级拟合曲线为y=200.57x^(-1.391)(R^(2)=0.8733);篦子三尖杉种群年龄结构呈稳定型。[结论]该研究结果为篦子三尖杉的保护提供了科学依据。

[Objective]To better to understand the population growth of Cephalotaxus oliveri in Wugong mountain.[Method]The C.oliver community in Wugong mountain was investigated.According to the survey data,the community flora,life form,the pattern of species-abundance,vertical structure and the population age structure of C.oliveri were analyzed.[Result]The community flora composition of C.oliveri was given priority to with temperate components,and to make the transition to the floristic equilibrium point.The life form was given priority to with high bud,and the percentage is 60%.The species-abundance pattern was logarithmic function relationship,the fitting curve y=24.07ln(x)+0.74(R^(2)=0.9775).The community was divided into three layers of tree layer,shrub layer and herbaceous layer,height level fitting curve y=200.57x-^(1.391)(R^(2)=0.8733).The population age structure of C.oliveri was stable.[Conclusion]The results provide a scientific basis for the protection of C.oliveri in the comb.